| Author Name | Affiliation | Postcode | | Asfandiyar | School of Materials Science and Engineering,and Institute of Materials Genome Big Data,Harbin Institute of Technology | 518055 | | Sichen Duan | School of Materials Science and Engineering,and Institute of Materials Genome Big Data,Harbin Institute of Technology | 518055 | | Jun Mao* | 1.School of Materials Science and Engineering, and Institute of Materials Genome & Big Data, Harbin Institute of Technology, Shenzhen 518055, China
2. State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China | 518055 | | Qian Zhang | 1.School of Materials Science and Engineering, and Institute of Materials Genome & Big Data, Harbin Institute of Technology, Shenzhen 518055, China
2. State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China | 518055 |
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| Abstract: |
| One of the abundantly available energies that could be found in industrial power plants, running vehicles, nuclear power stations, etc. is known as thermal energy. A physical phenomenon known as thermoelectricity converts thermal energy into electrical energy and vice versa, providing a green route for power generation and a potential solution to the world energy crisis. The thermoelectric conversion efficiency is generally characterized by the temperature-dependent dimensionless figure of merit (zT), which is generally promoted by increasing the power factor and reducing the thermal conductivity. The present work reviews heat transmission in thermoelectric materials, particularly phonon engineering to reduce the lattice thermal conductivity. The two leading strategies of point defects engineering and nanostructuring for reducing thermal conductivity have been summarized. The optimized reported zTs of various thermoelectric materials in terms of reduced thermal conductivity have been presented. |
| Key words: phonon transport engineering defects nanostructuring thermal conductivity zT thermoelectrics |
| DOI：10.11916/j.issn.1005-9113.2022058 |
| Clc Number:0472+.7 |
| Fund: |
